Compound dead-bolt mechanism



UNITED s'rArEs PArrmwr` ormcE.

SAMUEL SEGAL, 0F NEW YORK, N. Y. f

COMIOPOUND DEAD-BOLT M EC'HANISM.

Specification of Letters `latent.

Patented Mar. 9,1920.

Application led January 15, 1918, Serial No. 211,947. Renewed January13, 1920. Serial No. 351,252.

To yall whom t may concern Be it known that I, SAMUEL SEQAL, a 'citizenof the United States, residing at Ne of New York, have invented certainnew and usefull Improvements in Compound Dead- Bolt Mechanism; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will en' able others skilled in the art towhich it apence being had to the accom anying drawings, and tocharacters of re erence marked thereon, which form-a part of thisspecification.

The present invention relates, generally,

to improvements in lock mechanisms; and

the invention hasv reference, more particularly, to a novel,construction of compound glead bolt and/actuating mechanism thereor. f'

The -invention has'for its principal object to provide a simple, strongand elicient dead bolt device having a compound movement and relation tothe striking member of the lock mechanism, whereby thel same iscapableofmoving longitudinally into the receiving socket of the'striking member, and at the same time is equipped with auxiliary boltelements which move transversely of the main bolt to engage the walls ofthe striking member within the receiving socket thereof, to the end thatsaid striking member is engaged in a manner adapted to prevent the samefrom being pried away from the main bolt during any effort to forciblyviolate the lock mechanism.

. Another object of the present invention is to provide a novelconstruction of actuating mechanism, subjectA to the control ofl bothknob. or finger piece and key-mechanism, whereby the novel compoundbolt, comprising the main bolt and its auxiliary boltelements, isreadily moved into or out of operative relation to the striking memberof the lock mechanism.

Other objects of the present invention, not at this time moreparticularly enumerated, will be clearly understood from the followingdetailed description of the same.

With the various object-s of my present 4invention in view, the samecomprises, primarily, the novel construction of compound `dead boltmechanism hereinafter set forth;

and, the invention consists, furthermore, in the'novel arrangements andcomblnatmns of the various ydevices'and parts, well as in the details ofthe construction of the same,

i vw all of which will be hereinafter more fully York, 1n the county ofNew York and State \descr1bed, and then finally embodied in the claimsappended to this specification.

The invention is clearlyillustrated in the accompanying drawings, inwhich-:-

. Figure 'l is a plan view of the novel construction ofv compound deadboltmechanism viewedfrom the rear-side of the same, the casing andstriking member, together with a portion of the main bolt being shownvertical section, and the bolt mechanism vbeing lshown in unlocked orwithdrawn relation to the striking member :l Fig. 2 is a similar View,but showing the bolt mechanism in locked or projected relation to thestriking member; Fig. 3 isa horizontal cross section, taken on line 3-3in said Fig. 1, looking downward; and Fig. 4 isa detail end'view opening2 through which the dead bolt device is projected, and the referencecha-racter 3 indicates a striking member provided with an opening 4through which the dead bolt device may project into the receiving socket5 thereof. l

The reference character 6 indicates the main bolt of the dead boltdevice,-the same being provided at its 'inner end with tailframe 7integrally connected therewith.

Said tail-frame 7 is provided in its body' with a longitudinallyextending slot 8 providing a guide means which s lidably engages aguide-post 9 extending inwardly ,from the front wall of said casing l,whereby the bolt mechanism is guided and maintained against unduelateral movement or displacement during its longitudinal movement. Saidtail-frame 7- is also cut away adjacent to its free inner end to providethe same with an opening 10, which preferably extends from the end ofthe said slot 8. Said casing 1 is further provided with laterallydisposed webs 11, which terminate at each side marginal edge of saidtail-frame 7, and which serve as additional guiding means to preventlateral displacement of lthe bolt device during its longitudinalmovement. Projecting laterally from that side of -the tail-frame 7 whichfaces inwardly, or toward the front wall of the cas-l member17, whichextends rearwardly from its pivoted end beneath the guide-post 9, itsfree end- 18 extending beneath and terminating between said projectionsor abutments 14 and 15, said free end having an inwardly and laterallyextending tongue 19, which extends through said opening 10 and normallylies between the respective proj ections or abutments 12 and 13, and 14and 15. Connected with the upper marginal .edge of said datent-member isa stop-lug 20,

which normally enga es the rear side of said post 9, Athereby locagainst forward longitudinal movement until said detent-member isdepressed to free v said stop-lug from such engagement with said post 9.Connected with said detentmember 17 is a spring-member 22, the free endof which is anchored u on an anchorstud 23 connected with sai tail-frame7, said spring-member serving to maintain and return said datent-member17 to normal position with its stop-lug 20 in engagement with said post9. The front wall of said casing 1 is lprovided with a suitably locatedbearing-por-- tion 24 in'which is rotatably mounted the shank 25 of aknob or finger-piece 26. The inner end of said shank is provided with asquared portion 27 upon which is fixed a tumbler 28 having oppositelyextending tumbler arms 29. Connected with said tumbler 28 is a boss 30havin an angularly shaped periphery. Secure in connection withanchor-studs 31, connected with the front wall .of said casing 1, is aleaf-spring 32, the free end of which is sha ed to yieldingly engage theangular perip ery of said boss 30', to normally hold the tumbler 28 inan initial position. The said tumbler 28 is so positioned that, when thesame is rotated by the knob or finger-piece 26, 4one of its arms 29 iscarried into engagement with.

the projection or abutment 12 of saidl tailframe/7. Before operativelyengaging said projection or abutment 12, however, the rotated tumblerarm 29 strikes said tongue 19 ng said 'bolt devicey at the free end 18of the detent-member 17, thereby effecting a downward swinging movementof the latter against the tension of its spring-member 22. This downwardswinging movement of said detent-member 17 lowers said stop-lug 20 awafrom its en' gagement with the post 9, thus freeing the bolt device forforward longitudinal move ment after which the tumbler-arm 29 passesinto pushing engagement with said projection or abutment 12, thereby'lcausing the tail-frame 7 and the bolt devices connected therewith, tomove longitudinally forward,

to project the bolt devices into locking en-y gagement with the strikingmember 3. As

`the tumbler 28 completes a half revolution,

the tumbler arm 29 is returned to a normal horizontal position, andthereupon moves away from the projection or abutment 12, -at the sametime freeing said tongue 19 to permit Athe spring-member 22 to returnsaid detent-member 17 to normal position, except 7 and the bolt deviceagainst rearward lon` gitudinalmqvernent, or, in other Words, from beingpushed back, by other than proper manipulation, into the casing 1.

The tail-frame 7 and the bolt device being in forwardly moved or lockingposition, the same may be retracted by turning the knob or finger-piece26 in the opposite direction. Such movement rotates the tumbler arm 29in the reverse direction, and carries the same past the projection orabutment 12, irst into engagement with the tongue 19 to again deress thedetent-member 17 to free lts stopug 20 from engagement with the post 9,and vthen into rearwardly pushing engagement with the oppositeprojection or abutment 13, thereby causing the tail-frame 7,

and the bolt -device connected therewith, to

move longitudinally rearward, to retract the bolt device from thestriking member 3. The completion of the tumblers movement permits thedetent-member 17 to again move into holding engagement with the post 9.

The lock mechanism is covered over by an inlay or cover-plate 33, whichis engaged against stops 34 integrally connected with the walls of thecasing 1, and which is secured in place by means of a fastening screw 35which screws into the free end of said post 9. Mounted to rotate in abearing open-l the detent-member 17, to caruse the locking andretracting movements of the tail-frame 7 andl bolt device connectedtherewith. Said tumbler 38 is actuated by means of a suitable keycontrolled mechanism, such as a pin-tumbler lock 39 secured in the usualmanner within the body of the door 40 upon which t-he bolt-mechanism ismounted. The coupling-bar 41 of said pin-tumbler lock 39 is engaged withsaid rotatable member 37 so that rotary movement applied to saidcoupling-bar by the operation of said pinlock with a proper key, will inturn be transmitted through said rotatable member 37 to said tumbler 38.

The main bolt 6 of the device is provided with a pair of oppositelyextending transversely oblique guideways or openings 42 which cross oneanother. Arranged slidablv within said guideways or openings 42 areauxiliar bolt elements 43, so disposed by said vguideways or openings asto be capable of being respectively projected outwardly from the upperand lower sldes of said main bolt 6 at points adjacent to the free endof the latter. Each auxiliary bolt element is Iprovided with atail-piece 44 of reduced thickness so that the same will pass each othersildably at the juncture of said guideways or openings 42 where thelatter cross each other. Said tail-pieces 44 project outwardly from therearward ends of said guideways or openings 42 respect1vely beyond theupper and lower sides of said main bolt 6. Afiixed to the outer free endof each tail-piece 44 is an inwardly extending pin or lug 45. Fixedwithin said casing 1 between the inner face of said main bolt 6 and thefront wall of said casing 1 is a cam-slot plate 46, the same beingpreferably mounted upon bosses 47 connected with the front wall of saidcasing 1 to space the said cam-slot plate slightly away from the surfaceof said front wall, and said cam-slot plate being immovalblv secured bymeans of rivet portions 48 extending through the plate from said bosses47. Formed in said cam-slot plate are a pair of cam-slots 49, the samebeing disposed parallel to the longitudinal direction of movement ofsaid main bolt 6 for the greater portion of their extent, but beingprovided vat their outer ends with oblioue cam-portions 50 inclinedtoward the main bolt 6. Each pin or lug 45 is engaged in the respectivecam-slot adjacent to the free end of the tail-piece 44 to which the saidpin or lug is secured.

The operation of the .auxiliary bolt elements is as follows As thetail-frame 7 and the main bolt 6 is moved longitudinally outward, in themanner above described, the pins or lugs 45 ride forwardly in theparallel portions of said cam-slots and consequently without impartingany outward movement 'to said auxiliary -bolt elements while said mainbolt 6 is initially entering through the opening 4 into the receivingsocket 5 of said striking member 3. Before the outward .movement of saidmain bolt 6 is quite completed, however, the pins or lugs 45 enter saidcam-portions 50 of said cam-slots, and in riding therein, impart to eachtail-piece 44 an inward thrust, which causes the auxiliary bolt,elements 43 to be projected outwardly from the main bolt 6 into thereceiving socket 5, the completion ofthe outward projection of saidauxiliary bolt elements colnciding with the completion of the outwardlongitudinal movement of said main bolt 6. The result of this operationis illustrated in Fig. 2'more particularly, and as there appears, this'outward' projection of the auxiliary bolt elements extends the samebeyond the marginal edges ofthe opening 4 of the striking member 3.Preferably the walls of said striking member are thickened above andbelow said opening 4, as at 51, so that the sides of the projectedauxiliary *bolt elements may engage said thickened parts if desired..Vhen thus projected the auxiliary bolt elements oiier obstruction toany attempt vto pry away the striking member 3 fromthe projected mainbolt 6, as will be clearly apparent. In the retracting movement of themain bolt 6, the cam-portions 50 acting on the pins or lugs 45 serve towithdraw or retract the auxiliary bolt elements into said main bolt 6,so that the n,withdrawing or retracting movement of said main boltthrough said opening 4 of the striking member 3 may be continued untilcompletely accomplished, as will also be understood.

In its broader aspects my invention resides` primarily in the novelconstruction of compound deadl bolt, comprised in the main bolt 6 andthe auxiliary bolt elements associated therewith, without regard to theparticular mechanism by means of which the longitudinal projecting andretracting movements are imparted to said main bolt 6.

I am aware that some changes may' be made in thev several arrangementsand combinations of the various devices and parts, as well as in thedetails of the construction of the same, without departing from thescope of my present invention as above described, and as defined in theappended claims. Hence, I do not limit my invention to the exactarrangements and combinations of parts set'forthl in the abovespecification, nor do I confine myself to the exact details of theconstruction of said parts as illustrated in the accompanying drawings.

1.` In a .lock mechanism the combination with a dead bolt and means foractuating the same of auxiliary bolt elements, said dead bolt havingoblique oppositely extendva striking member.

gllideways therethroug lock mechanism in operative engagementwith saidtail pieces for projecting said auxiliary bolt elements u onlongitudinal movement of said dead bo t.

2. In a lock mechanism the combination with a dead bolt and means foractuatin o the same of auxiliary bolt elements, sai dead bolt havingoblique oppositely extending guideways therethrough -for said auxiliarybolt elements respectively terminating at their forward ends in thesides of said dead bolt adjacent to its outer free end, tailpiecesconnected with each auxiliary bolt element extending rearwardly throughsaid guideways so as to project exteriorly from the sides of said deadbolt adjacent to its inner end, a fixed cam-slot plate "associated withsaid lock-mechanism having cam-slots therein, and pins fixed to the freeends of said tail-pieces respectively engaged in said cam-slots wherebylongitudinal movement of said dead bolt carries said pins in operativeengagement with the cam-portions of said cam-slots to project saidauxiliary bolt elements after said dead bolt enters 3. A compound deadbolt comprising a longitudinally movable main bolt, means for actuatingsaid main bolt, an obliquely and transversely disposed auxiliary boltslidably associated with said main bolt and adapted to be projected fromthe side of said lnain bolt when the latter enters a striking member,and means engaging the rearward end of said auxiliary bolt forimparting.v a longitudinal projecting movement thereto prior to thecompletion of the projecting movement of said main bolt.

4. A compound dead bolt comprising a longitudinally movable main bolt,means for actuating said main bolt, an obliquely and.

transverselydisposed auxiliary bolt slidably associated with said mainbolt and adapted to be projected from the side of said main bolt whenthe latter enters a striking member, and means engagin the rearward endof said auxiliary bolt or imparting a longitudinal projecting movementthereto prior to the completion of the projecting movement of said mainbolt, comprising a ixed camslot plate having acam-slot formed therein,and. a pin projecting from the rear end of said auxiliary bolt intolsaid cam-slot.

5. A compound dead bolt comprising a longitudinallymovable main bolt,means for actuating said main bolt, said main bolt havvinga pair ofcrossed oblique guideways extend' transversely and oppositely throughits bodgy the respective outer ends of which terminate on opposite sidesof said main bolt adjacent to its outer free end while the respectiveinner ends of which terminate on opposite sides of said main boltadjacent to its inner end, a pair of auxiliary bolt elements slidablydisposed respectively in said guideways and adapted to be projected fromv said outer ends of the latter, tail-pieces connected with eachauxiliary bolt element projecting rearwardly from the inner ends of saidideways, a fixed cam-slot plate back of said main bolt having cam-slotstherein, and pins projecting from the free endsl of said tail-plecesinto said cam-slots whereby longitudinal movement of said main boltcauses said pins to ride in contact with the cam-portions of saidcam-slots to transmit a projecting movement to said auxiliary boltelements after said main bolt enters a striking member.

y6. In a lock-mechanisma casing, a deadbolt longitudinally movable insaid casing for projection from the end thereof, a striking memberhaving an opening in its front wall to receive said dead bolt, atail-frame connected with said dead-bolt, a fixed post within saidcasing upon which said tailframe is asf .. guided during itslongitudinal movement, a spring pressed detent-member on said tail-frameadapted to engage said post to hold said tail-frame' at the limit ofeither its projected or retracted'movement, abutments on saidtail-frame, rotary tumbler means for engaging said abutments to impartmovement to said tail-frame, means connected with said detent-memberengageable by said tumbler means to release said detent-member from saidoperative engagement of sald tumbler means with said abutments, saiddead .bolt having a pair of crossed oblique guideways extendingtransversely and oppositely through its body '10b post prior to the therespective outer ends of which terminate on opposite sides of said deadbolt adjacent to its outer free end while the respective in'- ner endsof which terminate on opposite sides of said dead bolt adjacent to itsinner end, a pair of auxiliary bolt elements slidably disposed in saidguideways and adapted to be projected from the outer ends of the latter,tail-pieces connected with each auxiliary bolt element projectingrearwardly from the inner rear ends of said guideways, a fixed cam-slotplate beneath said dead bolt having cam-slots therein, and pinsprojecting from the free ends of said tail-pieces into said cam-slotswhereby longitudinal movement of said dead bolt causes said pins to ridein contact with the cam-portions of saidV cam-slots to transmit aprojecting movement to, said auxiliary bolt elements after said deadbolt enters through the opening of said striking member so that saidauxiliary bolts are projected beyond the marginal edges of said openingof said striking member and Within the interior of the latter.

7 A compound dead bolt comprising a main bolt and crossed oppositely andobliquely projectable auxiliary bolt elements slidably related thereto,and cam means for each auxiliary bolt element coperating with therearward ends thereof to project and retract the same respectively uponprojecting and retracting longitudinal movement of said main bolt.

8. A compound dead bolt comprising a main bolt and oppositely andtransversely oblique auxiliary bolt elements slidably related thereto, acam-plate having cam-slots therein, the inner ends of said cam-slotsbeing parallel to the direction of movement of said main bolt While theouter ends of said cam-slots are parallel to the oblique direction of`movement of said auxiliary bolt elements, and pins connected with therearward ends of said auxiliary bolt elements adapted to riderespectively in said cam-slots.

n testimony that I claim the invention set forth above I have hereuntoset my hand this 9th day of January, 1918.

SAMUEL SEGAL. Witnesses:

GEORGE D. RICHARDS,

ADOLPH HANSEN.

